alice-teacher Scene change in Alice 3.1.92

[Don Slater]

You cannot change from the Room scene to an outdoor scene at the present time, or from an outdoor to the room, but you are able to change the ground textures with in a scene, from grass to snow for example. (See the attached screen shot)…

Use the setPaint method of the Ground object, and from the drop down menu select the ground texture you want (or you can import an image, or choose a color)…

Let me know if you have any other questions.

Later,
Don Slater




> On Apr 16, 2015, at 2:39 PM, reed-m <reed-m at harris.k12.ga.us> wrote:
> 
> I totally understand how to change the scene by moving the cameras around and using opacity, however I was wondering if there could be a way to totally change the background, like from grass to snow or inside to outside.  Apparently there isn't that option.  I've played around with it a lot and I can't figure out how to do this.  I don't have a book, we work with tutorials, demonstration and my knowledge after using Alice for a few years with my students.  We don't have a whole class on this, just 2 weeks in an introductory computer science class.  I have several preps and too many students in a computer class (35), so I don't have a tremendous amount of time to keep trying to find the answer.  That's why I turned to the Alice distribution list. I thought I remembered changing backgrounds in the past, but apparently I was wrong.  Thank you for your response.
> 
> Memory Reed
> Business Education Teacher
> FBLA Adviser
> 706-628-4278
> reed-m at harris.k12.ga.us
> ________________________________________
> From: alice-teachers-bounces+reed-m=harris.k12.ga.us at lists.andrew.cmu.edu [alice-teachers-bounces+reed-m=harris.k12.ga.us at lists.andrew.cmu.edu] on behalf of Leonel Morales [litomd at gmail.com]
> Sent: Thursday, April 16, 2015 1:16 PM
> To: Alice educators
> Subject: Re: alice-teacher Scene change in Alice 3.1.92
> 
> Hi!
> 
> Here is a variation of the scene change that Michael provided. Instead
> of taking the models down 5 to hide them the opacity is switched
> between 0 and 1 to make the relevant objects appear.
> 
> Because no markers are needed when the opacity technique is used,
> objects can be moving and keep moving while the scene is not showing.
> 
> I also observed the ground goes white after the first run as Michael pointed.
> 
> Attached the .a3p file.
> 
> All the best,
> 
> Leonel
> 
> 2015-04-15 10:36 GMT-06:00, Leonel Morales <litomd at gmail.com>:
>> Hi!
>> 
>> It is a little bit challenging. One option is to design the scenes
>> each besides to the other making sure each scene fits exactly in the
>> entire camera frame, it may be needed to move the camera forwards to
>> do that.
>> 
>> Then move the camera to the left or right to the position where it
>> frames exactly each scene with a movement with a duration of zero
>> seconds, that makes the scene switch instantaneous.
>> 
>> The easiest way to do the camera movements is to use camera markers.
>> In the scene design move the camera to the exact location and then
>> drop a marker at that position and then use "MoveAndOrientTo"
>> instructions, with zero seconds duration, to make the scene switch.
>> 
>> Depending on how complex the scenes are it is possible to have them
>> all in the same place, all hidden but the elements of the current
>> scene. A scene change consists in switching the visibility of the
>> current and new scene, with duration of zero seconds again if the
>> switch are to be made instantaneous.
>> 
>> I am sure there are other ways unknown to me.
>> 
>> Regards,
>> 
>> Leonel
>> 
>> 2015-04-14 18:24 GMT-06:00, reed-m <reed-m at harris.k12.ga.us>:
>>> How do you do a scene change in Alice 3.1?  I've seen the question asked
>>> many times, but not answered. Is it impossible?  I thought I'd done it
>>> before, but can't remember what I did.
>>> 
>>> Thanks,
>>> 
>>> Memory Reed
>>> Business Education Teacher
>>> FBLA Adviser
>>> 706-628-4278
>>> reed-m at harris.k12.ga.us
>>> _______________________________________________
>>> alice-teachers mailing list
>>> alice-teachers at lists.andrew.cmu.edu
>>> https://lists.andrew.cmu.edu/mailman/listinfo/alice-teachers
>>> 
>> 
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